Radio Shack HTX-400 owner manual Receiving Transmissions, Temporarily Opening Squelch

RECEIVING TRANSMISSIONS

Follow these steps to receive standard transmissions.

1.With the radio on, rotate SQ counterclockwise until you hear a hissing sound. Then slowly rotate SQ clockwise just until the noise stops.

Notes:

•BUSY appears when the HTX-400 receives a standard transmission or if the squelch is open. If the transmission uses CTCSS tones, CALL also appears.

•Volume, power, and squelch are combined in one control. The inner control is VOL (volume) and power on/off, while the outer control is SQ (squelch).

•If the HTX-400 picks up unwanted, weak transmissions, rotate SQ clockwise to prevent the squelch from opening for these transmissions. If you want to hear weak trans- missions, rotate SQ counterclockwise. When you do this, you might hear hissing between transmissions.

2.Set VOL/OFF to a comfortable listening level.

TEMPORARILY OPENING SQUELCH

If you use the Tone Squelch (CTCSS) feature, you might not hear a transmission on the current frequency. To temporarily open the squelch so you can hear all transmissions on the frequency, hold down MO. To resume normal operation, release MO.

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